1. Biotechnology Division, Korea Atomic Energy Research Institute, Jeongeup, Republic of Korea
2. Department of Biological Sciences, Chonbuk National University, Jeonju, Republic of Korea
3. Center for Vaccine Evaluation and Study, Medical Research Institute, School of Medicine, Ewha Womans University, Seoul, Republic of Korea
4. Department of Microbiology, School of Medicine, Ewha Womans University, Seoul, Republic of Korea
5. Department of Pediatrics, School of Medicine, Ewha Womans University, Seoul, Republic of Korea